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77julia77 [94]
2 years ago
7

Does anyone know what 0.77 as a percentage is?

Mathematics
1 answer:
Over [174]2 years ago
3 0

Answer:77%

Step-by-step explanation:

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Find the selling price of a $30 item after a 40% markup.
tangare [24]
$18. Multiply 30 by 0.4 and subtract that value from 30 to get the price after the percentage taken away.
5 0
3 years ago
Which equation has the same solution as this equation?
lesya [120]

Answer:

3rd Option is correct.

Step-by-step explanation:

Given Equation:

x² - 16x + 12 = 0

First We need to find solution of the given equation.

x² - 16x + 12 = 0

here, a = 1   , b = -16  &  c = 12

x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

x=\frac{-(-16)\pm\sqrt{(-16)^2-4(12)}}{2}

x=\frac{16\pm\sqrt{256-48}}{2}

x=\frac{16\pm\sqrt{208}}{2}

x=\frac{16\pm4\sqrt{13}}{2}

x=8+2\sqrt{13}\:\:andx=8-2\sqrt{13}

Now,

Option 1).

( x - 8 )² = 144

x - 8 = ±√144

x - 8 = ±12

x = 8 + 12 = 20   and x = 8 - 12 = -4

Thus, This is not correct Option.

Option 2).

( x - 4 )² = 4

x - 4 = ±√4

x - 4 = ±2

x = 4 + 2 = 6   and x = 4 - 2 = 2

Thus, This is not correct Option.

Option 3).

( x - 8 )² = 52

x - 8 = ±√52

x - 8 = ±2√13

x  = 8 + 2√13   and x = 8 - 2√13

Thus, This is correct Option.

Option 4).

( x - 4 )² = 16

x - 4 = ±√116

x - 4 = ±4

x = 4 + 4 = 8  and x = 4 - 4 = 0

Thus, This is not correct Option.

Therefore, 3rd Option is correct.

8 0
3 years ago
What is the equation of the line in standard form
aivan3 [116]

your answer is d because the formula is Ax+By=C

6 0
3 years ago
A = b and c = d, then a x c = b x d<br> what kind of reasong is used here
Phoenix [80]
A = b is given to us

Multiply both sides by c to get
a = b
a*c = b*c
The rule to multiply both sides by c is the multiplicative property of equality

Then on the right side, replace c with d. This replacement is possible due to the fact that c = d. This is using the substitution property.

So we go from
a*c = b*c
to this
a*c = b*d
5 0
3 years ago
Math help!!!!!!!!!!!! will mark brainly
vfiekz [6]

Answer:

It would be 9.17%

Step-by-step explanation:


7 0
3 years ago
Read 2 more answers
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